/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 *  lustre/smfs/inode.c
 *  Lustre filesystem abstraction routines
 *
 *  Copyright (C) 2002, 2003 Cluster File Systems, Inc.
 *
 *   This file is part of Lustre, http://www.lustre.org.
 *
 *   Lustre is free software; you can redistribute it and/or
 *   modify it under the terms of version 2 of the GNU General Public
 *   License as published by the Free Software Foundation.
 *
 *   Lustre is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with Lustre; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#define DEBUG_SUBSYSTEM S_SM

#include <linux/module.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
#include <linux/obd_class.h>
#include <linux/obd_support.h>
#include <linux/lustre_lib.h>
#include <linux/lustre_idl.h>
#include <linux/lustre_fsfilt.h>
#include <linux/lustre_smfs.h>

#include "smfs_internal.h"


#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_smfs_root;
#endif

/* SYSCTL below */

static struct ctl_table_header *smfs_table_header = NULL;
/* 0x100 to avoid any chance of collisions at any point in the tree with
 * non-directories
 */
#define PSDEV_SMFS  (0x130)

#define PSDEV_DEBUG           1      /* control debugging */
#define PSDEV_TRACE           2      /* control enter/leave pattern */

/* These are global control options */
#define ENTRY_CNT 3

int sm_print_entry = 1;
int sm_debug_level = 0;

/* XXX - doesn't seem to be working in 2.2.15 */
static struct ctl_table smfs_ctltable[] =
{
        {PSDEV_DEBUG, "debug", &sm_debug_level, sizeof(int), 0644, NULL,
         &proc_dointvec},
        {PSDEV_TRACE, "trace", &sm_print_entry, sizeof(int), 0644, NULL,
         &proc_dointvec},
        {0}
};

static ctl_table smfs_table[2] = {
        {PSDEV_SMFS, "smfs",    NULL, 0, 0555, smfs_ctltable},
        {0}
};


int  __init  init_smfs_proc_sys(void)
{
#ifdef CONFIG_PROC_FS
        proc_smfs_root = proc_mkdir("smfs", proc_root_fs);
        if (!proc_smfs_root) {
                printk(KERN_ERR "SMFS: error registering /proc/fs/smfs\n");
                RETURN(-ENOMEM);
        }
        proc_smfs_root->owner = THIS_MODULE;
#endif

#ifdef CONFIG_SYSCTL
        if ( !smfs_table_header )
                smfs_table_header =
                        register_sysctl_table(smfs_table, 0);
#endif
        return 0;
}

void cleanup_smfs_proc_sys(void)
{
#ifdef CONFIG_SYSCTL
        if ( smfs_table_header )
                unregister_sysctl_table(smfs_table_header);
        smfs_table_header = NULL;
#endif
#if CONFIG_PROC_FS
        remove_proc_entry("smfs", proc_root_fs);
#endif
}